One told how hairdressers will often make a huge fuss about how great a new style looks as a psychological ploy to stop their clients questioning their work – until they get home and it’s too late.

Another admitted that they often offer customers a conditioning treatment while washing their hair as a way of buying some time to take a break and grab a snack while it’s working.

One said that turning up and asking for the best stylist is a waste of time (and money) as most salon workers have an unwritten rule that the next person who is free will do the job, irrespective of their skill level.

And one said that turning away customers who want perms is not uncommon because the treatment takes so long to do.

WHAT A MUG!

BREAST BUDS

SHOE-OFF

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They said: “Many salons offer services for both sexes, and when they do, it’s inevitable that they charge anywhere from 20 to 50 per cent less for the same amount of time to do a simple trim, if the customer is male.”

It’s certainly enough to make you feel nervous before your next trip to the salon – and it’s a bit awkward given we trust our hairdressers more than anyone else, according to a poll.

Last year we told how hairdressers and beauty salons could be fined £20,000 for offering free glasses of wine and champagne without a proper licence.